java.lang.NullPointerException: Attempt to invoke virtual method 'void com.android.bluetooth.gatt.ServiceDeclaration.addCharacteristic(java.util.UUID, int, int)' on a null object reference

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java.lang.NullPointerException: Attempt to invoke virtual method 'void com.android.bluetooth.gatt.ServiceDeclaration.addCharacteristic(java.util.UUID, int, int)' on a null object reference
at android.os.Parcel.readException(Parcel.java:1626)
at android.os.Parcel.readException(Parcel.java:1573)
at android.bluetooth.IBluetoothGatt$Stub$Proxy.addCharacteristic(IBluetoothGatt.java:1376)
at android.bluetooth.BluetoothGattServer.addService(BluetoothGattServer.java:590)
at com.coinblesk.payments.communications.peers.bluetooth.cltv.BluetoothLEServer.onStart(BluetoothLEServer.java:118)
at com.coinblesk.payments.communications.peers.AbstractPeer.start(AbstractPeer.java:48)
at com.coinblesk.client.MainActivity.startServers(MainActivity.java:580)
at com.coinblesk.client.MainActivity.access$500(MainActivity.java:109)
at com.coinblesk.client.MainActivity$7.onReceive(MainActivity.java:522)
at android.support.v4.content.LocalBroadcastManager.executePendingBroadcasts(LocalBroadcastManager.java:297)
at android.support.v4.content.LocalBroadcastManager.access$000(LocalBroadcastManager.java:46)
at android.os.Handler.dispatchMessage(Handler.java:102)
at android.os.Looper.loop(Looper.java:148)
at android.app.ActivityThread.main(ActivityThread.java:5417)
at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:726)

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